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| Titel |
Estimation of evapotranspiration for a small catchment as an input for rainfall-runoff model |
| VerfasserIn |
Leszek Hejduk, Kazimierz Banasik, Adam Krajewski, Marta Mackiewicz |
| Konferenz |
EGU General Assembly 2014
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 16 (2014) |
| Datensatznummer |
250093746
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| Publikation (Nr.) |
 EGU/EGU2014-8774.pdf |
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| Zusammenfassung |
| One of the methods for determination of floods is application of mathematical rainfall-runoff
models. Usually, it is possible to distinguish a number of steps for calculation of hydrograph
of the flood. The first step is the calculation of effective rainfall which is a difference between
total rainfall and losses (amount of water which do not participate in flood formation like
interception, infiltration, evaporation etc.) . One of the most common method for
determination of effective rainfall is a USDA-SCS method were losses are connected with
type of the soils, vegetation and soil moisture. Those factors includes the Curve
Number factor (CN). However there is also different approach for determination of
losses were soil moisture is calculated as a function of evapotranspiration. In this
study, the meteorological data from year 2002-2012 were used for determination
of daily evapotranspiration (ETo) by use of FAO Penmana-Monteitha model for
Zagożdżonka river catchment in central Poland. Due to gaps in metrological data, some
other simpler methods of ETo calculation were applied like Hargraves model and
Grabarczyk (1976) model. Based on received results the uncertainty of ETo was
calculated.
Grabarczyk S., 1976. Polowe zużycie wody a czynniki meteorologiczne. Zesz. Probl.
Post. Nauk Rol. 181, 495-511
ACKNOWLEDGMENTS The investigation described in the poster is part of the research
project KORANET founded by PL-National Center for Research and Development
(NCBiR). |
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